Looker is described as 'gives you access to your organization’s data. Many users start by browsing through the reports - which we call “Looks” - and dashboards that others in their organization have already created. This page will show you how to get started browsing' and is a business intelligence tool in the development category. There are more than 100 alternatives to Looker, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and Self-Hosted solutions. The best alternative is Tableau. It's not free, so if you're looking for a free alternative, you could try RAWGraphs or Microsoft Power BI. Other great sites and apps similar to Looker are Gephi, Plotly, Google Data Studio and Google Charts.
RAWGraphs is an open source app built with the goal of making the visualization of complex data easy for everyone. Born as tool for designers and vis geeks, RAWGraphs aims at providing a missing link between spreadsheets and vector graphics editors.
Power BI for Office 365 is a self-service business intelligence (BI) solution delivered through Excel and Office 365 that provides information workers with data analysis and visualization capabilities to identify deeper business insights about their data.
The Google Charts is an extremely simple tool that lets you easily create a chart from some data and embed it in a webpage. You embed the data and formatting parameters in an HTTP request, and Google returns a PNG image of the chart.
Unleashing enterprise intelligence: Keeeb raises productivity and scales the impact and commercial potential of intelligence by engaging employees and customers with relevant knowledge and skills when and where they need it.
The most complete OpenSource Bussines Intelligence platform including BI Portal, Reports, OLAP Analysis, Dashboards and Scorecards
It´s fully customizable and you can include other BI tools in LinceBI BI Global Portal like PowerBI, Metabase.